Dr. Ronald L. Whisler, MD
- Medicare services, 2024
- 4,635
- Medicare patients, 2024
- 269
- Part D claims, 2024
- 2,963
- Medical group
- 1
- State license
- 1
- Practice address
- 543 Taylor Ave, Columbus, OH 43203
- Practice phone
- Call (614) 293-2229
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
OSU Internal Medicine
Columbus, Ohio
Find Dr. Whisler's professional email, personal email and mobile number
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Dr. Ronald L. Whisler is a rheumatologist in Columbus, Ohio
Dr. Whisler practices at OSU Internal Medicine in Columbus, Ohio.
Dr. Whisler's NPI, 1275540734, was assigned on August 1, 2006. Dr. Whisler graduated from Ohio State University College of Medicine in 1968. Dr. Whisler holds Ohio license 35031069.
- NPI
- 1275540734NPI Registry (opens in a new tab)
- NPI enumeration date
- August 1, 2006
- NPI status
- Active
- Practice phone
- (614) 293-2229
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 84
- Medical school graduation
- 1968
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Ronald L. Whisler practices at OSU Internal Medicine in Columbus, Ohio
Dr. Whisler's primary practice is OSU Internal Medicine, at 543 Taylor Ave, Columbus, OH 43203 in Franklin County. The practice phone is (614) 293-2229.
- OSU Internal Medicine543 Taylor Ave, Columbus, OH 43203 · Franklin CountyPhone(614) 293-2229
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ronald L. Whisler is affiliated with 1 site of care and 1 medical group
Dr. Whisler's primary practice is OSU Internal Medicine in Columbus, Ohio. The medical group on file is Ohio State University Physicians.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Ronald L. Whisler's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Whisler practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| OSU Internal Medicine | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ronald L. Whisler is one of 258 rheumatologists in Ohio
Rheumatology is Dr. Whisler's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Whisler is licensed in Ohio.
Specialties and state licenses
- Rheumatology, OhioPrimary
Rheumatologists near Dr. Whisler
Counts of rheumatologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ronald L. Whisler billed Medicare for 4,635 services in 2024
CMS data shows 4,635 Medicare services from Dr. Whisler across 7 procedure codes in 2024, for 269 Medicare patients. Medicare paid $39,007 for them. Every service was in an office.
Dr. Whisler's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 1432024: 3,9262645%
- Office and hospital visits
- 2023: 7142024: 58918%
- Surgery
- 2023: 1062024: 1071%
- Other services
- 2023: 02024: 13
Dr. Whisler compared with the Ohio median for rheumatologists, 2024
- Dr. Whisler
- Ohio median
- Medicare services
- 4,635vs 6147.5 times
- Medicare patients
- 269vs 21326% above
- Part D claims
- 2,766vs 1,1372.4 times
Medians across 259 rheumatologists in Ohio with Dmand AI profiles that report each measure.
Dr. Whisler's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ronald L. Whisler treated 269 Medicare patients in 2024, average age 73
CMS counts 269 Medicare patients who saw Dr. Whisler in 2024. The largest group is 65 to 74, with 113 patients. 75% of them have arthritis, and 71% have high blood pressure. 10% are also on Medicaid. Their average risk score is 1.40, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Whisler's median patient age at 65, with 69% women.
Dr. Whisler's Medicare patients by age, 2024
Dr. Whisler's Medicare patients by sex, 2024
- Women18368%
- Men8632%
Chronic conditions among Dr. Whisler's Medicare patients, 2024
- Arthritis75%
- High blood pressure71%
- High cholesterol67%
- Ischemic heart disease28%
- Osteoporosis27%
- Diabetes25%
- Mood disorders25%
- Depression23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Whisler's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women69%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ronald L. Whisler wrote 2,963 Medicare Part D claims in 2024
In 2024, Dr. Whisler wrote 2,963 Medicare Part D claims for 356 patients. 87% of them were for generic drugs. CMS names the drug for 2,766 of them, across 36 drugs with 11 or more claims each, at $1,932,592 in total drug cost. In 2023, CMS named 2,992 claims across 40 drugs.
Dr. Whisler's Part D claims by kind of drug, 2024
- Generic2,574 claims87%
- Brand-name389 claims13%
Dr. Whisler's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,9922024: 2,7668%
Drugs named by CMS: 36 in 2024, 40 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Ronald L. Whisler graduated from Ohio State University College of Medicine
Dr. Whisler graduated from Ohio State University College of Medicine in 1968.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ronald L. Whisler's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Ronald L. Whisler
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What is Dr. Ronald L. Whisler's NPI number?
Dr. Ronald L. Whisler's NPI number is 1275540734. It was assigned on August 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ronald L. Whisler?
Dr. Ronald L. Whisler is a rheumatologist in Columbus, Ohio. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Ronald L. Whisler practice?
Dr. Whisler practices at 543 Taylor Ave, Columbus, OH 43203. Dr. Whisler's primary practice is OSU Internal Medicine in Columbus, Ohio.
What is Dr. Ronald L. Whisler's office phone number?
The practice phone on file for Dr. Whisler is (614) 293-2229.
What is Dr. Ronald L. Whisler's medical license number?
Dr. Whisler holds Ohio license 35031069.
What medical group is Dr. Ronald L. Whisler part of?
Dr. Whisler is linked to Ohio State University Physicians.
Does Dr. Ronald L. Whisler accept Medicare?
Yes. CMS data shows Dr. Whisler billed Medicare for 4,635 services in 2024.
How many Medicare patients does Dr. Ronald L. Whisler see?
CMS counts 269 Medicare patients who saw Dr. Whisler in 2024, with an average age of 73.
What services does Dr. Ronald L. Whisler bill to Medicare?
In 2024, Dr. Whisler's most billed Medicare services were injected or infused drug (J1010), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. Ronald L. Whisler go to medical school?
Dr. Whisler graduated from Ohio State University College of Medicine in 1968.
What drugs does Dr. Ronald L. Whisler prescribe most?
In 2024 Medicare Part D data, Dr. Whisler's most prescribed drugs by claims were Prednisone, Hydroxychloroquine Sulfate and Gabapentin.
How long has Dr. Ronald L. Whisler been practicing?
Dr. Whisler graduated from medical school in 1968, 58 years ago.
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